Originally Posted by ABN Hoosier

Plus 4, c6tgc, 9901, 41021. Quick question: tuning

Motor up to temp, clutch just rebuilt, new fuel line, new plug, new fuel (sidewinder v2 30%), running a 6.5 restrictor. Top end needle about 1/2 to 1/4 turned in from flush, idles fine, bottom end doesn't drop off, pinch test about 1.5 to 2 seconds it reacts (goes lean), throttle servo set up perfect (returns throttle fully closed and opens a hair past the restrictor looking down into the carb), .5mm dead band on throttle linkage. All that being said, I run my buggy around and do a semi high to high speed pass and get on the brakes and it flames out.

What the heck? Please give me some ideas. Please....